In today's multivendor client/server environments, it is essential that computer professionals know how to do their job across a variety of platforms and systems. This book should help readers who are experts at using one of the five most popular mainframe and mid-range operating systems become skilled users of the other four.
This is an excellent overview of various obsolete mainframe operating systems (not to mention Unix, which is not obsolete.) You know the systems I mean: the ones you access using those ugly old green and black screens in a dusty corner of your IT department's offices, the ones with the humongous databases hidden behind arcane text-based software. The potentially dry material is greatly moistened by DuCharme's witty yet understated writing style.There are still a lot of those dinosaur mainframes still roaming the earth, Y2K notwithstanding, so this field guide is still useful, a full half-decade after it was published.
Very good overview of major O/Ses. Still applicable.
Published by Thriftbooks.com User , 25 years ago
If you want to have a good overview of all the major mini/mainframe OSes, this is the book. The absence of NT and the inclusion of VM is questionable but this could be addressed by a 2nd edition. If you are looking for an in-depth discussion of the internals of each system this is not your book. But if you need to navigate multiple OSes in a multiplatform environment this is your best bet.
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